Calculating-machine.



J. GRABER.

CALCULATING MACHINE.

APPLICATION r1121) 001.21, 1911.

Patented May 12 19141 4 SKEETBSHEET 1.

nwmmn (A Br as f? ORNE e I M M IITNESS J. GRABER.

CALCULATING MACHINE.

APPLICATION TILED @0121, 1911.

1,096,238, Patented May 12,1914.

4 SHEETS-SHEET 2.

Q' 73 lo 15 ATTO J. GRABER. CALCULATING MACHINE.

APPLIGAT1ON TILED OGT.21,1911.

m WITNESSES" I I \Q 1M 1 Patented May 12, 1914.

4 SKEETS-BHBET 3.

-lllil J. GRABER.

CALCULATING MACHINE.

APPLICATION 111.1111 (10121,1911.

1,096,238. Patented May 12,1914,

4 SHEETS-SHEET 4.

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9 Illllllll INVENTOR 1 Y wa 1 1 subtraction, multiplication and division.

-- UNITED STATES PATENT OFFICE.-

. JULIUS GRABER, OF NEW YORK, N. Y., ASSIGNOR TO GRABER CALCULATING MACHINE 00., A CORPORATION OF NEW YORK. H

CALCULATING-IdACH-INE.

Specification of Letters Patent. Pat t d pl 12 191 4 Application filed October 21 1911. i i

Serial No. 655,954.

'. specification.

- on October 11th, 1910.

This invention relates to a calculating -maehine, of novel construction which 'is adapted to automatically perform addition,

The invention resides more particularly in 'a novel construction of a. plurality of keys and key'actuated means. for operating the eiphering device proper, illustrated and de scribed in Patent No. 972,360 granted to me In the accompanying drawing: Figure 1 is a plan of a calculating machine, embodying my invention; Fig. 2 an enlarged plan 1 with the cover partly broken away; Fig. 3

a vertical cross section on line 3'3, Fig. 1; Fig 4 a vertical longitudinal section on line 4 1, Fig. 3; Fig. 5 a vertical section on line 5-5, Fig. 2; Fig. 0 a sectional rear view of Fig. 5; Fig. 7 an enlarged vcrtieal section on line 77, Fig. 5; Fig. 8 a vertical section on line 88, Fig. 1, and Fig. 9 a cross sectionon line 9-4), Fig. 8.

Theciphering mechanism contained in box 10 is actuated by a suitable number of; keys 11 which are vertically reciproca-hle in the cover 12 of said box. The keys are arranged in parallel rows. each row contain ing nine keys, six of such rows being shown in the; drawings. The finger pieces 1?, of the keys of each row are labeled one to nine, the keys marked 1 being located in proximity to the front of the apparatus as illustrated in Fig. 1 of the drawings.

The keys of each row are. adapted to actuatea shaft 14 located within box 10 be low said row, which shaft may in turn be coupled to either one of a number of registering wheels 15 mounted on a carriagelfi which is arranged hack of top plate 12. The ciphering mechanism referredto is"niorc a shafttrac'tion only, while thecarriage is indispensable for multiplication and division.

The mechanism for transmitting motion from the keys to shaft 14: is as follows: To the lower end of each vertical key-shank is pivoted at 17 one arm of a two-arin-lever 18 fulcruined at 19 to a notched plate 20 which depends from cover 12, one plate 20 be ng provided for each row ofkeysff-l to The other arni'of lever 18 carries =a v pi li21 which is received within {1,001'1CSPQX1QLLI1,

slot formed in the shank 22"of a T-shapet lever 22, 23, 24 fulcruined to plate 20 as at 25 (Fig. 6). Arm

Tics

ispiovided with a knob 26 ,while arm 24 is influenced by a spring 27 which tends to lower shank 22.

and thereby raisethe key 11 connected thereto. Knob 2G is received within the groove 28 of a collar 29 axially slidahle on shaft Lb which is squared so as to prevent an inde pendent rotation of the collars 2Qon'their shaft. To each collar 29 is' firmly secured a toothed sector or motion transmitting mom-- her 30, which is adapted to engage a toothed wheel 31 provided with ten teeth and fast on mounted in casing 10 in parallelism with shaft 14. The several sectors are provided with different numbers of teeth according to the keys-with which they arev coiiperable. The sectors of the 1 keys have but one tooth, the sectors of the 2" keys have two teeth, etc.,'the sector of the 9 keys having nine teeth. Shafts-ll are provided with miter wheels 32, meshing into 'similar wheels 3i of a (Ullllitflli' shaft 35 firmly mounted in suitable bearings of the front plate 256 of casing 10. wheels 2-H. partly entering the latter through openings 37 of said plate. Shaft ZJris by miter wheels 38 connected to a vertical shaft 30 carrying a handle or crank 40. Means should further be provided for temporarily maintaining the keys in their depressed position in order to likewise maintain the cooperating sectors 30 inlhe position to which they have been set by said keys, while handle 40 is operated for a purpose hereinafter described. 'lhcse means are shown to consist of a swinging ha r or detent 41 fulcrumed to the lower side of cover 12 as at 42 and arranged in close proximity to each row ofkeys (Figs. .3, l. 5 and 7). Each bar is influenced by a spring 43 that tends to draw its lower edge toward its'cotiperating row of keys. the 'latter being provided with noses or abutments 44 adapted to be engaged by such edge. It is appar ent from Fig. 7,. that upon the depression of any key, its nose 44 will swing bar 41 away-from .the key, until in-the' lowermost position of the latter, the nose clears the' plate and spring '43 is free to return the bar to its original position. In this way the manually depresed. keys are automatically slide. The latter is normally retracted a 'spring 49 while it is automatically advanced during the last stage of each rotation of handle by means of'a two-arm lever 50 piv.

oted to front. plate 36 at 51. The upper arm of'this lever. is provided with a slot 52 accommodating a stud 53 of slide 45. The lower armof lever 50 carries a pin 54 which is adapted to be engaged by the nose 55 of a cam disk 56-slidably mounted on a squared shaft 57. To disk 56 is firmly attached a collar 58, the groove 59 .of which receives the lower arm of a T-shapcd lever 60 pivoted at -6l. The shank of lever 60 is connected to a two arm lever 62, to which-in turn akey 63 having finger piece. 64 is pivoted, the levers G0, 62 being equal in all respects to lever 22,

' poses hereinafter described.

23. 24. and lever 18 respectively. Key 63 is provided with a nose 65 that is adapted to engage the-lower side of cover 12 for pur- In order to transmit the movement of slide 45 to bars 41,

the slide is provided with a plurality of abutments 66 that are adapted to engage lugs 45 of said bars as appears in Fig. 4. As will be seen from this figure, the left hand abutment Q6 bears against its bar 41, while a gap of gradually increasing width is formed between the cooperating abutments 'and bars from theleft toward the right,'-s'o as toeti'ect not a simultaneous but a consecutive-engagement of the abutments with their bars. in this way power for advancing slide 45 is economized, while by the successive release of the depressed keys,'shocks are obviated and objectionable noise prevented, as

will be readily understood.

As thus far described, addition is per formed by depressing the various keys 11 constituting the digits of the first number to be added. The depressed keys after being released bv the fingers of the operator remain in their lowered'position, as above described, the noses 44 first sw nging bars 41 outward and then. permittin the latter to fall in on top of said noses. Thlring the descent of each key, its cooperating lever 18 s and lever 22,23, 24 have been tilted against the action of spring 27 (Figs.- 5 and 6). In 70 this way,-the corresponding collar '29 and sector 50 have been axially shifted on shaft 14,";sothat said sector has become alined 'wifh its wheel 31 (left portiomof Fig.5).

After the proper keys have been depressed? crank 40 is given one complete turn, so as to. cause all shafts 14 and sectors 30 to siinuls taneously make one complete rotation. During this movement, the sectors pertaining to the depressed keys will cause their toothed wheels 31 to perform partial rotations according to the teeth number'of said sectors, whilethe sectors pertaining tothe raised keys will turn idle, as they are out of mesh with their wheels 31 (right part of Fig. 5). Thus for instance, if in any one vertical key row, the key 4 is depressed, itsse'ctor 30, having four teeth, will rotate the coiiperah ing wheel 31 and shaft-32 through an angle corresponding to four tenths of a revolution. As will be seen from Fig. 7, the rotation of shafts 32 will be completed during the first portion of the rotation of crank 40, theremaining portion of such rotation being utilized for operating-bars 41 in order to're-' lease thedepressed keys. Thus afterthe ro-.. tation of shafts 32 has been completed, the nose 55 of cam 56 which participates in the rotation of shafts 14 comes into engagement with pin 54 of level 50. thereby tilting the 10 latter and shifting slide 45 toward the left (Fig. 4). In this way the bars 4I are swung away from their respective key-rows, there by liberating noses .44 and Y permitting springs 43 to raise the previously depressed qs keys 11. While the rotation of crank 403is being completed, pin 51 will gradually re-' turn to its normal position owing to the retraction of slide 45 through spring 49.

The means by whieli the partial rotations of shafts 32 are transmitted to registering wheels 15 is' fullydescrib'ed in my above cited patent, the shafts 32 of this application corresponding to the/shafts 41.0f's1iid patent. It may be stated however'thati'iponeach shaft 32 is slidably mounted a sleeve 67, carrying at itsends beveled gear wheelsASS, 69, either one of which is adapted to engage a similar wheel 70. The latter is keyed to the spindle 71 of-idial 15, the. uppermostnumber of which, is disolaye'd through a window 72 of carriage 16. the latterfbeing rotatable and longitudinally movable on a spindle 73 of casing'l'O. A shipping bar 74 straddled by the hubs of wheels 68, 69 is'- 125 actuated by a hand-lever 75 througha suitable link and lever connection 71'. so as to either adapt the machine for additionaoul multiplicationfor for subtraction and --divi' tional means are provided for carrying tens,

hundreds, etc, during the calculating operation, said means being also fully dis-.

closed in my patent and comprising'a tappet 81 mounted on each'spindle 71 and adapted to oscillate a shipping lever 82. The latter in turn engages a grooved collar 83 which is integral with barrel and has a finger 84 which may be brought into mesh with toothed wheel 77 upon a tilting of lever 82, so as to advance said wheel for one tooth and thereby rotate the neighboring dial 15 for one digit.

If amultiplication is to be stead of an addition as above described, the depressed keys should remain in their'lowered state after a rotation of crank 40 has been completed. For this purpose key 63 is depressed while pushing the same slightly backward, so that its nose'tifiengages the lower side of cover 12, in which position the parts are maintained by frictional contact. 3y this depression of key 63, cam 56 is shifted toward the right (Fig. 8) to bring it out of engagement with pini'it. In this way slide 45 will remain at rest irrespective of the number of turns imparted to crank 40, so that the depressed keys are locked against rising. In'order to raise the keys after the multiplication has been performed, an additional key 85 is arranged in proximity to key 63. Key 85 is slotted at 86 for the accommodation of a screw 87' tapped into a depending bracket 88' and insuri'nga true vertical play of the key. The latter is provided at its lower end with a beveled projection 89 that is adapted to engage pin'fit of lever 50. By depressing key 83, projection 89 will by engaging pin 54, tilt lever so as to oscillate bars 41 and release the depressed keys, while upon the release of key 85, a spring 90 returns the latter into its raised position.

I claim 1 1. in a calculating machine, a depressihlc key. a motion transmittingdevice controlled thcreby. a c-iphering device adapted to cooperate with said motiou-transmitting device upon a depression of the key, means 7 for retaining said key in its depress ed position, and means for actuating the motion lrausmitting device and for subsequently releasing the key-retaining means, i

2. In a calculating machine, a spring-iiillacuccd deprcssible key, a rotary motion transmitting device controlled thereby, a ciphcring device adapted to cooperate with said mo tion-transmitting device upon a depression of the key, means for retaining sairl performed inkey in its depressed position, and means for rotating the motiorrtransmitting deviceand for subsequently releasing the key-retaining means.

3. In a calculating machine, a spring intluenced depressible key, a toothed sector controlled thereby, a toothed wheel adapted to be engaged by the sector upon a depression of the key, means for ret-aininggsaid key in its depressed position, aciphering'device operated by said toothed wheel, .an(lmeans for rotating the sector and for'subsequently releasing the key retaining means. 4. In a calculatin machine, a depressible key, a toothed whe a cipherlng device operatively connected thereto, a slidable 'and rotatable sector which is normally out ofalinement with the toothed wheel, means actuated upon a depression of the key for sliding the sector into alinementfwith' said wheel, means for retaining the key in its depressed position, and means for rotating the sector and for subsequently releasing the key. i

5. In a calculating machine, a depressible key, a toothed wheel, a ciphermg ueviceop- 'eratively connected thereto, a slidable and rotatable sector which is normally out of alinement with the toothed wheel, a spring influenced lever system actuated by the key and adapted to slide said sector into aline-' ment with the wheel, means for retaining the key in its depressed position, and mean for rotating the sector and for subsequently releasing the key. l

(3. In a calculating machine, a spring-in tluenced depressible key, a toothed sector controlled thereby, a toothed wheel adapted to be engaged by the sector upon a depression of the key, means for retaining said key in its depressed position, a'ciphermgdevice operated by said toothed wheel, and a manually operable crank for rotating the sector and subsequently releasing the'k'ey.

7. In a calculating machine, a depressible key, :a slidable and rotatable sector controlled thereby, a toothed wheel adapted to be engaged by said sector, a ciphering device operable by the toothed wheel, and means for retaining the sector in operative relation to said wheel. i 8. In a calculating machine, a shafh-a sector slidably and non-rotatably mounted therecn, a toothed wheel which is normally out of mesh with the sector, a-cipl1eringde.-.

-vice operable by the toothed wheel, a depressible key adapted to slide the sector-into mesh with said toothed wheel, and a crank operatively connected to the shaft.

-9. In a calculating machine, asquared shaft,- a sector loosely mounted thereon, a toothed wheel adapted to be engaged by the sector, a depressible key, a spring-influenced lever system operable by the key for axially moving the sector on the shaft, means for retaining the key firi its depressed position, and means for rotating the shaft. 7

10..In a calculating machine, a shaft, a

grooved collar slidablyand non-rotatablye imounted thcreom a toothed sector on said "collaiyfa toothed"wheel adapted-to be en;

lgedby the sector, a ciphering device oper' able by 'said' wheel, "a de'pressible key, ap'ring-infiuenced 'lcver actuated by the key 10am retainingthekey iii its engaging the collarroove, means for aiid nican's for-'i-otating'the shaft."-

11. In .a' calculating machine, a ciphering' device, a: depressible key, a crank, a inotion-' transmitting device operable by said crank andadapted'to actuate the ciphering device upona depression of the key, and an oscillating detent adapted to lock the key in its depressedpositionff 1-2. In a calculating machine, device, a.dep re'ssible;key,"a 'cra'nk, a motiontrausmittiug device operable by said crank and adaptedcto actuatethe ciphering device upon a depression of the key, anbscilla'ting detent-,adaptcd to lock the key in its dcpressed position, and a crank adapted to actuate the motion transmitting device and subsequently operate the detent for unlockingthekey.

3. Ina calculating machine, a ciphering device,a'depressible key, a crank, a motiontransmittiiWdcyice operable by said crank .Qand a'dapte to -:ic't uate the cipherin; device the lt'eyQand an'oscilla'ting detent adapted to eng'agesaid abutment.

a calculating machine,a dcprcssihle .keypan labut'mentthereon, a two-arm lever pivoted to the key, a T-shaped spring-inivoted to the two arm lever, a shaft 'acol ar slidable thereon and en'- gaged the T-shaped lever, a toothed sector on said collar. :1 ciphering device adapted 'to' be ac'tuate'd-by -said sector, and an .a5'oscillating detent adapted to engage the 'ltjzlna calculating machine, a plurality" abutment- 15. Iii a calculating machine, a plurality of depressible keys, motion transmitting de vicesloontrolled thereby. ciphcr'in devices filljidapted to cooperate with said motion trans mitting devices, Swinging bars for retaining the keysin their depressed position, and

v gmean's'for consecutivelyactuating the mo- ;tion' transmitting devicesand for the swingof jrmgszof"depressible keys. motion trans- 'mi tti n'g'devi ces controlled thereby. viphcring ".devir'es'adapted tolcoiiperate with the m tion 9 transmittingdevices of therespectivc keyswinging detents adapted to maintain e s in' their depressed position, and means or tilting said detents to thereby re he keys.

;In acalculating machine,'a plurality epressed position,

a cipheringof rows of depressible keys, motion-trans- 'mitting devices controlled thereby, ciphering mechanism adapted to be actuated by said motion transmitting devices, 'oscillat ing detents adapted tomaintain the keys means for actuating the motion transmitting devices and for subsequently moving the slide,

19. In a calculating machine, a, plurality of rows of depressible keys, motion-transmitting devices controlled thereby,, ciphering mechanism'adapted to be actuatedby said motion transmitting devices, oscillatin; dcteuts adapted to maintain the keys in their depressed position, onexlctent being" provided for each key-row, a slide adapted to consecutively engage the detents. and a manually operable crank for actuating the motion transmitting devices and'fo r subseouentlv moving the slide.

20. In a calculating machine, a plurality of rows of deprcssihle keys. motion-trans lll iltlllg devices controlled thereby, cipher in, mechanism adapted to'be actuated by.- said motion transmitting devices. oscilla ting,,:

tit-tents adapted to'maintain the keys in their depressed position-tone detent being pro vided for each key-ro\r, and means for consecutively withdrawing said detcnts from their respective key-rows. V

91. In a calculating machineja plurality of keys. abutments on said keys, motiontransmitting devices controlled by the keys. ciphering mechanism adapted to be actuated y said motion transmitting devices.- a plurality of oscillating'detents adapted to engage the ahutments, asprin -intluenced slide adapted to engage the detents, acam and an additional key, both of which last named elements are adapted to actuate the slide.

22. In a calculating machine, a plurality,

of keys. ahu'tnients on .saidikeys, a plurality? of oscillating .detentsadapted to engagejsald abntments, a slide ada ted to engage the detcntsfa lever pivotal v connected to'the sli le, a pin projecting. from saidlever, a. camadapted to engage said pin, and mcans for rotating said cam. v

In a calculating machineg a plurality of keys. ahntments on said keys. a plurality of oscillating dctents adapted to engage said 'necting- ;'the cam from the slide.

almtmenls. a slidwadapted to engage the den-ms, a lever pivotally connected to the slide. a pin projecting from said lever, a cam adapted to engage said pin, and an additional key also adapted to engage said m.

.Z-t. In a calculating machine, a plurality of-. keys, a plurality of detents adapted to maintain the keys in their depressed position, a slide adapted to-engage said detents, means for actuating said slide, an additional key, and m'tins controlled thereby for disconnecting ,ae slide froxnsaid actuating means. Y

95. Ina calculating-machine,a plurality of keys, a plurality of detents adapted to maintain the keys in their depressed positiolna slide adapted to engage said detents, a cam adapted to actuate the slide, means 14' rotating said'cam, an additional key,- and means controlled thereby for discon- "26. In a calculating machine, a plurality of keys, a plurality of detents adapted to maintain the keys in their depressed position, a slide adapted to engage said detents, a lever pivotally connected to said slide. a pin on said lever, a shaft, a cam slidable thereon and adapted to engage the pin, and

an additional key adapted to shift the cam on the shaft away from the pin.

v 21'. In a ea eulating machine, a plurality i of keys, a plurality of detents adapted to maintain the keys in their depressed position, a slide adapted to engage said detents, a pin for advancing said slide, a cam adapt ed to engage said pin, a first additional key adapted to advance the pm, and a second additional key for bringing the em out of engagement with the pm,

'28. In a calculating machine, of keys, maintain the keys in their depressed positic-n, a slide adapted to engage said detents, a first lever pivotally connected to said slide, a. pin on said lever, a shaft, means for rotating the same, a cam slidable on the shaft and adapted to engage the pin, a

a plurality grooved collar on the cam,a second lever engaging the collar groove, and an additional key for actuating said second lever.

a plurality of detents adapted to 29. In a calculating machine,-a plurality of keys, a plurality of detents adapted to maintain the keys-in their de'pressed .position, a slide adapted to engage said detents,

a lever 'pivotally connected to said slide, a

pin onsaid lever, and an additional key having a beveled abutment that is adapted to engage said pin; 3

30. In a calcul ting machine, a plurality of depressible keys, motion transmitting de \"ices controlled thereby, ciphering devices adapted to cooperate with said motion taansmitting devices, means for retaining the keys in their depressed position, means for actuating the motion-transmitting inoperative.

JULIUS GRABER.

.l-Vitnesses ARTHUR E. Zones, Kxrnnmrnn Kocu.

devices and -for subsequently releasing the keys, and means for renderlngsald releasing means 

